Former WNBA star Nancy Lieberman has signed on to coach the Power of the of the Big 3 professional basketball league, becoming the first female head coach in men’s professional sports.

The Power tapped Lieberman after NBA Hall of Famer Clyde Drexler was named the league’s commissioner last week, SI.com reports.

“It’s an honor and privilege for me to be a part of the BIG3 and its vision,” Lieberman said. “We have former NBA players and Hall of Fame coaches who still love the game, have a deep respect for the competition, and a passion to play competitive basketball. It’s in our DNA..”

In 2015, Lieberman was hired as an assistant coach by the Sacramento Kings, becoming the second female assistant coach in NBA history behind Becky Hammond, who joined the San Antonio Spurs in 2014. Lieberman, who was inducted into the Naismith Memorial Basketball Hall of Fame in 1996, also coached the Texas Legends of the D-League from 2009 to 2011.

The Big 3, a 3-on-3 league started by rapper/actor Ice Cube and entertainment mogul Jeff Kwatinetz in January 2017, features mostly retired NBA players. Allen Iverson, Julius Erving, Chauncey Billups, Charles Oakley, Jason Williams and Stephen Jackson are some of the league’s most notable players and coaches.

The Big 3 opens its season in Houston on June 22.